Classmates of a high school student who allegedly hacked his way into a school computer to change his grade are calling his scheme for a higher GPA "pretty crazy."

Jose Bautisa, 18, is facing eight felony charges after allegedly hacking into his school website and changing the grades for himself and four other students. He was being held under house arrest with a GPS monitor.

"I think the lengths he went to change grades was pretty crazy," Susan Bean, a classmate of Bautista at Dr. Michael M. Krop Senior High School in Miami, told ABC News.

Bautista was charged Friday with intellectual property offense and offense against computer users, among other felonies.

The principal at Dr. Michael M. Krop Senior High School turned over Bautista to the police on Thursday, after the student reportedly gave him a written confession.

"There have been whispers going around for the last week or so," Bautisa's classmate Brett Curtis told ABC News. "More and more information started to come out and then we saw that he was arrested."